Firmachain v0.5.0-patch Official Release

Overview

The v0.5.0-patch resolves an issue where state-synced nodes would stop syncing due to AppHash mismatches when processing smart contract transactions. This fix ensures that CosmWasm contract data (code, pinned codes, checkpoints) is properly included in state-sync snapshots, improving reliability and stability for all nodes.

This patch is non-consensus breaking and requires no governance proposal. It can be safely applied by all participants at any time.

Updates

Upgrade chain binary

• Chain binary : v0.5.0 → v0.5.0-patch
• Chain version: v0.5.0 (NO CHAIN VERSION CHANGES)

Fix

• Include CosmWasm contract data in state-sync snapshots
• Prevent AppHash mismatch on first smart contract execution for state-synced nodes

Type

• Non-breaking patch. Chain version stays at v0.5.0
• No governance changes required

Tests

Comprehensive testing has been performed:

• Local: Unit tests, CLI command validation
• Devnet: Unit tests, CLI commands, end-to-end tests
• Testnet (Imperium-4): Smart contract execution tests with state-sync validation

Timeline

This is a patch release and not tied to a fixed upgrade block height.

• The patch can be applied immediately by any validator or full node.
• No chain halt or governance coordination is required.

References

For more detailed upgrade guide and patch notes, please visit:

https://github.com/FirmaChain/mainnet/blob/main/docs/patch-notes-v0.5.0-patch.md

What's Changed

• fix: register wasm snapshotter for proper state-sync by @dimiandre in #12
• Release Firmachain v0.5.0-patch by @haryunio in #13

New Contributors

• @dimiandre made their first contribution in #12

Full Changelog: v0.5.0...v0.5.0-patch